What is really striking about the latest Zeiss Otus optic is the sheer size of the thing, which is enormous for 28 mm even if it does open up to f/1.4. The designers have really had to go to extreme lengths to combat the laws of physics in order to obtain optimum image quality. Ming Thein's review, link below, shows it attached to a camera which gives a better impression of the scale of this monster. Thein reports that it has a definite impact on the handling, which is hardly surprising.
http://blog.mingthein.com/2015/10/16/re ... 8-14-otus/